1.Stretched Canvas,pure Cotton of 280gwithout nails 2.Paulownia measure:1.1*1.1cm 3.Size: 5*5/5*6/5*7/5*8/5*10/4*6/7*7/10*10cm Features and Specifications:1) Canvas type: 100% unbleached/bleached Cotton, Linen ,Polyester2) Weight after coating: 280g,300g,330g,350g, 360g,380g,400g,440g....3) Wood Type: Paulownia or Fir4) Staples/nails: staple on the back or staple free or staple on the sides5) ...